#include <stdio.h>

int main(){
	const int NUMBER = 10;
	int x;
	int count[NUMBER];
	int i;
	for ( i=0; i<NUMBER; i++ ){
		count[i] = 0;
	}
	scanf("%d", &x);
	while ( x!= -1 ){
		if ( x>=0 && x<=9 ){
			count[x] ++;
		}
		scanf("%d", &x);
	}
	for ( i=0; i<NUMBER; i++ ){
		printf("%d:%d\n", i ,count[i]);
	}
	return 0;
}
